University of the Philippines (Diliman). Science Education Center. (1966). Science Teaching Center [brochure. s.n.].
Cita Chicago (17th ed.)University of the Philippines (Diliman). Science Education Center. Science Teaching Center [brochure. [Quezon City: s.n.], 1966.
Cita MLA (9th ed.)University of the Philippines (Diliman). Science Education Center. Science Teaching Center [brochure. s.n.], 1966.
Atenció: Aquestes cites poden no estar 100% correctes.